PCA9600D,112

Signal Buffers, Repeaters, Splitters Overview

The PCA9600D,112 is a dual bidirectional bus buffer designed to isolate I2C-bus capacitance for point-to-point or multipoint applications up to 4000 pF. It operates at speeds of at least 1 MHz and supports Fast-mode Plus (Fm+) specifications. The device features temperature-stabilized logic voltage levels at the SX/SY interface, allowing compatibility with non-I2C buses like SMBus or PMBus. Supply voltage ranges from 2.5 V to 15 V, while TX/TY outputs provide 60 mA sink capability. It separates bidirectional signals into unidirectional paths for galvanic isolation via opto-couplers.

Signal Buffers, Repeaters, Splitters Feature Summary

• Isolates high capacitance loads on buffered buses while maintaining standard I2C logic levels on the controller side
• Splits bidirectional I2C signals into separate transmit and receive paths to enable optical or magnetic isolation
• Provides high drive strength on buffered outputs to support low-impedance or long-distance transmission lines

Signal Buffers, Repeaters, Splitters Applications

• Interface between I2C-buses operating at different logic levels such as 5 V, 3 V, or 15 V
• Galvanic isolation of I2C-bus nodes using opto-couplers or magnetic couplers
• Conversion of I2C-bus SDA or SCL signals to multi-drop differential bus hardware
• Long-distance point-to-point or multipoint communication architectures

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify component authenticity through authorized NXP channels. Confirm package type matches SO8 requirements. Check RoHS compliance status. Ensure ordering suffix corresponds to correct packing method. Validate datasheet revision against current manufacturing standards.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when isolating I2C capacitance exceeding standard limits or interfacing disparate voltage domains. Verify supply voltage range covers both controller and target bus requirements. Consider thermal resistance values for PCB layout optimization. Evaluate propagation delays for high-speed Fm+ operation constraints.

Signal Buffers, Repeaters, Splitters Part Context

This part belongs to the PCA9600 series of dual bidirectional bus buffers manufactured by NXP Semiconductors. It serves as a higher-speed alternative to the P82B96, offering improved performance metrics and broader voltage compatibility. The series is designed specifically for extending I2C bus distances and isolating electrical noise in complex system architectures.

Signal Buffers, Repeaters, Splitters Replacement Considerations

PCA9600DPZ is a drop-in alternate for PCA9600DP,118. Verify pinout compatibility before substitution. Ensure buffering requirements match application needs.